Hammer drill



FIG. 1 is a top, front, and left side perspective view of a first embodiment of a hammer drill showing our new design;

FIG. 2 is a bottom, rear, and right side perspective view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a front elevational view thereof; and

FIG. 8 is a rear elevational view thereof.

FIG. 9 is a top, front, and left side perspective view of a second embodiment of the hammer drill showing our new design;

FIG. 10 is a bottom, rear, and right side perspective view thereof;

FIG. 11 is a left side elevational view thereof;

FIG. 12 is a right side elevational view thereof;

FIG. 13 is a top plan view thereof;

FIG. 14 is a bottom plan view thereof;

FIG. 15 is a front elevational view thereof; and,

FIG. 16 is a rear elevational view thereof. 

CLAIM The ornamental design for a hammer drill, as shown and described. 